The laptop can t turn on the monitor, but what is the problem with the indicator light on? How much

There is a problem with the circuit inside the monitor.

There are four reasons why the car indicator light is on and the screen is black:

The first reason: This is the memory and graphics card of the notebook are oxidized, resulting in poor contact with the memory slot or graphics card slot, resulting in the inability to turn on, and the black screen, the probability of it appearing black screen accounts for 60%, processing method:

It is to remove the power supply, open the back cover of the notebook, take out the card slot of the memory, if it is not an independent graphics card soldered to the motherboard, also take out the card slot, align the part of the memory and the gold finger of the graphics card (that is, where there is a copper sheet) and wipe it back and forth with an eraser at least 6 times, blow the ash, and then insert it back, cover the back cover, and turn on the computer generally.

The second reason: is that the video memory of the notebook graphics card is soldered, the performance of the main chip is reduced, the graphics card BIOS is disordered, and the control power supply IC is problematic, which will cause the graphics card to fail to work normally, that is, the graphics card is broken, because the graphics card is broken, the screen will naturally be black, and the treatment method: Jianyi repairs the graphics card, or replaces the graphics card.

The third reason: the boot circuit of the notebook motherboard is faulty, such as clock, reset, power supply, MOS tube, etc., which may cause failure to turn on, black screen, IO problems, and unable to start the computer, black screen, etc.

The fourth reason is that the screen cable of the notebook is broken or the contact of the brother is poor, resulting in no image signal transmitted to the screen for display, that is, a black screen.

1. Check whether all the plugs of the power supply and the wires on the adapter of the notebook are firmly inserted into their respective sockets, if not, it means that the contact with the power supply is poor, just press the plug down again.

2. If the indicator light is not yet on, on the premise of ruling out the power adapter, it must be that there is a problem with the power chip of the motherboard or a short-circuit breakpoint, and the motherboard is not powered on.

3. If the indicator light responds but the screen is black, it may be a problem with the graphics card or memory.

4. There is no display when the boot is normal, check whether the power cable, switch, and data cable of the display are correct, and it is also possible that the display is damaged.

The solution to the Windows 10 system boot display does not light up: 1. First of all, we need to ensure that the display has been powered on, and then rule out whether the VGA cable connector is loose, you can replace the VGA cable to test it, or directly replace the monitor to try; 2. Poor contact of the memory will also cause the display to not light up, you can take the host apart and take out the memory module.

There are several reasons why the screen does not light up after the laptop is turned on: First of all, it is necessary to determine whether it is a true black screen or a false black screen. 1. If it is a pseudo-black screen, the lamp is generally broken, and the lamp needs to be replaced.

2、The true black screen is mostly a problem with the graphics card chip,If it is the chip of the NVIDA graphics card door,Including the integrated graphics card,If you want to completely solve it, you have to change to a new and improved version of the graphics card chip,Otherwise, it must be **,If it is not the chip of the graphics card door, such as the ATI chip,You only need to add welding。 3. Also, if the power of the note is insufficient, the laptop itself will activate the protection measures, and the screen will not light up. [Heart].

If the PE can't enter, and you can't see the prompt of the notebook motherboard, then the motherboard may be faulty, and it is recommended to take the notebook to the manufacturer for repair.

Summary. 1. Check all cables (including power plugs) to make sure all devices are connected correctly and tightly.

2. Check whether the laptop has power (although you won't make such a low-level mistake), because there is a built-in battery in the notebook, so it can be used without plugging in the power supply, of course, the time is limited, when the built-in battery is used up and not charged, it will cause the notebook to fail to turn on, at this time we just need to plug in the power to charge.

2: May be caused by infection with a virus.

Press and hold F8 to enter the advanced options page, select "Latest Correct Configuration", and press Enter. After entering the system, run the anti-virus software, check for viruses, and if there is a virus, restart the computer after anti-virus.

If it is not normal, it may be caused by the incompatibility of the device driver with the program, delete the graphics card, network card and other drivers, delete the driver and restart, if it doesn't work, then rule out this reason.

3: Hardware issues.

Hope it helps. Thank you.

What should I do if the laptop boot indicator and screen are on but it won't turn on.

Hello dear! I have seen your question here, and I am trying to sort out the answers of several friends, and I will give you a reply in five minutes, please wait a moment! ^

1. Check all cables (including power plugs) to make sure all devices are connected correctly and tightly. 2. Check whether the laptop has power (although you won't make such a low-level mistake), because the notebook has a built-in battery, which can be used without plugging in the power supply, of course, the time is limited, when the built-in battery is used up and there is no charging Wang Qinji, it will cause the notebook to fail to turn on, at this time we just need to plug in the power supply to charge. 2：

It may be caused by a virus infection, press and hold F8 to enter the advanced options page, select "Latest Correct Configuration", and press Enter. After entering the system, run the anti-virus software, check for viruses, and if there is a virus, restart the computer after anti-virus. If it is not normal, it may be caused by the incompatibility of the device driver with the program, delete the graphics card, network card and other drivers, delete the driver and restart, if it doesn't work, then rule out this reason.

3: Hardware problems hope to help you. Thank you.

Sometimes when the computer is turned on, the monitor doesn't light up, and then we are very distressed, what is going on? Here's what I brought about about the laptop display not lighting up, welcome to read!

What's going on if the laptop boot display doesn't light up?

Method 1: 1. Sometimes the laptop is turned on, but the display does not light up, this phenomenon is generally due to the failure of the motherboard self-test or the problem of the screen lamp.

2. First of all, we must determine whether it is a real black screen or a pseudo black screen, the pseudo black screen is that the screen backlight is gone, and you can see the words on the screen if you look closely.

3. If it is a pseudo-black screen, it is generally that the lamp is broken and the lamp needs to be replaced. It is recommended to go to a professional repair shop for repair, if it is still under warranty, then it does not need to be cost.

4. If it's a really black screen, it's basically a broken graphics card or South Bridge. You can connect an external monitor to see,It's connected to the VGA port of the notebook,If the external monitor is also like this,It's basically a problem with the graphics card。 If the external monitor is normal, then it is the problem of the screen itself or the screen cable.

There is a 20% chance of a problem with the screen itself or the screen cable, and an 80% chance of a graphics card failure. Because the external output and the laptop screen output are two independent output modules. If the graphics card is broken, a replacement graphics card is generally fine.

Method 2: If the logo screen does not appear after booting up, and the screen is always black, then:

1.Poor contact of memory modules. Pull out the memory module, carefully wipe the gold finger with an eraser, and clean the card slot from dust. Plug in the memory module and turn it on.

2.Disassemble the back cover or case and thoroughly clean the motherboard and fans of dust. Turn it on again.

3.The screen cable is loose.

4.There is a problem with the graphics card.

5.The screen is broken.

Poor or faulty contact.

7.There is a problem with the motherboard.

The last 5 questions are recommended to be sent for repair.

1.What should I do if the laptop boot display does not light up?

2.What's going on with the laptop boot display not lighting up.

3.What to do if the screen doesn't light up after the laptop is turned on.

4.What's wrong with the laptop monitor not lighting up.

5.What's going on with the laptop monitor not lighting up.

6.What's going on with the laptop display not lighting up.

7.What to do if your laptop's monitor doesn't light up.

8.What should I do if the computer boot screen does not light up?

9.What should I do if the computer host is normal and the monitor is not lit.

10.The Lenovo laptop display does not light up.

Summary. Look at the keyboard case and lowercase lights to judge, no matter what else, try it again.

The power on indicator light is on on the laptop and the screen is not on.

Look at the keyboard case and lowercase lights to judge, no matter what else, try it again.

Not lit. Self-test can't be done.

That's how to do it.

Power off, memory detached, use an eraser to gold finger.

Install it back on, and then power it on and try it out.

Again, when the hard disk is powered off, the boot is tested, and there is a high probability that the memory will be oxidized for a long time, resulting in poor removal.

Poor contact. This situation.

I saw it, just look at the case of the keyboard, and the rest can be ignored. Can I decompose my computer?

Or is it a slim laptop?

It should be ok. Ultra-thin book, this kind of visual inspection you can't disassemble by yourself, you have to disassemble the shell.

It is recommended that the computer store repair, 50 at most and of course 100 with a black heart

I'm mainly afraid that you can't get the buckle by unshelling yourself, and it will be installed back @ @弄坏, corrected.

The problem is a small problem, and it is more troublesome to dismantle.